Hướng dẫn inverse log python

y=np.log10(train_set["SalePrice"])

how do i find inverse of this ?? I want it to return back to the original value and not the scaled value

hoefling

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asked Aug 3, 2018 at 9:21

2

Hope the above answers were helpful, in case you or anyone want the inverse for log10 (base 10) and log (natural)

# Logarithm and back to normal value
y = np.log10(train_set["SalePrice"])
train_set["SalePrice"] = 10 ** y

# Natural log and back to normal value using built-in numpy exp() function
y = np.log(train_set["SalePrice"])
train_set["SalePrice"] = np.exp(y)

answered Mar 23, 2020 at 13:44

If you want to obtain the original value then you can do:

z = 10**y

answered Aug 3, 2018 at 9:25

Jacques UngJacques Ung

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y = np.log10(train_set["SalePrice"])

return back to the original value all of array elements

Z = np.array(10**y)

answered Jun 1, 2020 at 14:36

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